feat(vatsal): Create new config vatsal

kickstart folder contains the original init.lua file. Current init.lua
gets it's config from lua.vatsal.plugins which what I created to
modularize the code and enable lazy loading.

Init to lua now loads all the plugins from vatsal.plugins

lua/vatsal/plugins/none-ls.lua

@@ -0,0 +1,18 @@
+return {
+  'nvimtools/none-ls.nvim',
+  event = { 'BufReadPre', 'BufNewFile' },
+  config = function()
+    local null_ls = require('null-ls')
+
+    null_ls.setup({
+      sources = {
+        null_ls.builtins.formatting.stylua,
+        null_ls.builtins.formatting.prettier.with({
+          disabled_filetypes = { 'javascript', 'typescript', 'json' } -- Use biome
+        }),
+        null_ls.builtins.formatting.biome,
+        -- null_ls.builtins.diagnostics.biome,
+      }
+    })
+  end
+}